No kidding. Had this been the photo to post I'd have still gone with AU Details. I've heard that the only difference between AU58 and MS62 is if the grader isn't really sure. But to me, the coin definitely looks circulated but, it ain't my grading company. I recently got an MS62 on a coin which I was "hoping" for an AU58. It was a variety I bought off of eBay as a circulated example which was the primary reason I never bothered to submit it. However, since last years 4th quarter grading "special" was half off on variety attribution, I threw it into the pot. Color on these clad IKEs can be very tough and target toning, such as the OP's coin, can be even tougher. Hence, my details opinion.
I tend to think the grade is right on. The coin is quite attractive and desirable in top tier plastic.
So is whizzing more like an aggressive buffing type wheel on like a dremel tool? Kinda a more specialized polish I guess.